Hello

I need some technical help with my wrx. I have a 99 WRX.

I also have a GARRET T12 TURBO. I would like to know what other engine modifications i will need to do when i put this turbo on so i can drive the car day to day and here and there give it abit without blowing my engine??????

Thanks  

You'll need an upgraded fuel pump and bigger injectors with a good tune.